Climate change and outdoor air pollution are two of the most challenging environmental issues that modern society faces. These challenges are strongly linked through their emission sources, the sectors they affect and the policies that can be implemented to reduce emissions. They also interact...

Based on an in-depth literature review and responses to a survey among OECD member countries, this paper discusses the use of flexibility mechanisms in environmental regulations. Such mechanisms can provide flexibility as to how a given environmental improvement is achieved, regarding where...

As cities grow, the negative effects of congestion start to play their part, often affecting the cities' ability to become and remain competitive. Although many studies have focused on these negative effects, the links between pollution and city competitiveness are less explored. This paper...